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P6210 - Huge Battery Drain on ICS

Anyone experiencing battery drain on ICS? I upgraded, rooted, and removed some of the bloatware to help. Thought it was fixed but my tab is dead again. Says the Android OS is taking up my juice. Was never a problem before. Could leave it on standby for days with HC. Now its dead in a day or less.

jjj133 said:
Anyone experiencing battery drain on ICS? I upgraded, rooted, and removed some of the bloatware to help. Thought it was fixed but my tab is dead again. Says the Android OS is taking up my juice. Was never a problem before. Could leave it on standby for days with HC. Now its dead in a day or less.
Click to expand...
Click to collapse
I initially saw similar behavior, but once I killed the cached processes once, and since have shut down to charge and started new, I haven't seen that behavior.
Do you have WiFi on? Could it be you have apps that are checking to be updated? I know in the past on my phone my Amazon Appstore has a habit of starting itself up and continually checking for updates for itself and for any apps I got from Amazon.

Tried it both ways...wifi on and off.

Try using CPU spy (free in market) or betterbatterystats (free- search for it here on XDA) to see what is eating up your battery exactly.
Sent from my SPH-L710 using xda premium

I noticed that I had a conflict between "Power Savings" settings and the "Display" settings. Putting them both at 1 minute resulted in an always on screen I had to disable the Power Savings to correct the problem.

I did have something odd happen yesterday that seems to have kept my screen on for 4 hours. When I got home and opened my case the tab was very warm, and shut off. And all but entirely out of power, before that it has used about 10 % in 17 hours of standby with about an hour of use, or so.
I think it is possible that an app that previously didn't keep the screen on is now for some reason keeping it on, and I didn't notice when I closed the leather cover.
No issues today, but I am going to try and see if I can find some release notes to tell me about the new download for ICS for the P6210, perhaps this is addressed?

Just to update I installed the betterbatterystats. I showed a couple of things that were keeping my tab awake. Once I fixed those I thought that would be it but it was still draining. I then installed juice defender and had it turn wifi off every time I turned the screen off. That did it. Was never like this before the update but at least its good to know I fixed it.

i suggest checking better battery stats for AudioOut_1 Partial Wakelock. its been draining my phone fast when i upgraded to ICS.
check it here: http://forum.xda-developers.com/showthread.php?t=1629346
now my battery is working great.. i just left my tab for 10 hrs in the locker when i got the tab its still have 97% battery.

for me i just checked and changed my wifi sleep policy from never to when screen turns off and its fine now. :highfive:

I thought about this very issue; I decided to wait.
jjj133 said:
Anyone experiencing battery drain on ICS? I upgraded, rooted, and removed some of the bloatware to help. Thought it was fixed but my tab is dead again. Says the Android OS is taking up my juice. Was never a problem before. Could leave it on standby for days with HC. Now its dead in a day or less.
Click to expand...
Click to collapse
Did you download the ICS as opensource? Myself, I am deciding to wait for the OFFICIAL verson to be released.

I had the same problem. i even went back to HC to make sure
the issue is not there (it wasn't) and upgraded to ICS
again (full wipe all the time). No luck something keeps
my device unable to go to deep sleep.
Now i'm back at HC again

hunterbreedlove said:
Did you download the ICS as opensource? Myself, I am deciding to wait for the OFFICIAL verson to be released.
Click to expand...
Click to collapse
The version is OFFICIAL .
It's just available only for some countries.

i had the huge battery drain issue while in stock ICS..
the tablet simply refused point blank to go into deep sleep.. in HC it would but not in ICS.. i would take the tablet fully charged to work and not use it much there.. by the time i was travelling back it would be 60% drained in not using it througout the day...
recently flashed to aorths CM9 build and all my battery woes are gone.. now when i get back from work the battery is at 96%!!
battery drain during usage is the same but the CM9 build has awesome battery conservation stuffs for when you dont use it..
would suggest everyone who has these battery issues to move to CM9.. really helped for me.

My battery usage on CM9..
Sent from my GT-P6210 using xda premium

jjj133 said:
Just to update I installed the betterbatterystats. I showed a couple of things that were keeping my tab awake. Once I fixed those I thought that would be it but it was still draining. I then installed juice defender and had it turn wifi off every time I turned the screen off. That did it. Was never like this before the update but at least its good to know I fixed it.
Click to expand...
Click to collapse
Early results show Juice Defender is helping a lot with mine too. Thanks for the tip!
Next morning: Just the free version of Juice Defender using the default profile took me from 35% overnight drain yesterday down to 3% overnight drain today. That's not bad. It should be even better tomorrow because I've turned off all location services after seeing that BetterBatteryStats says Google location is the worst single offender at keeping wifi going overnight.

vobguy said:
I initially saw similar behavior, but once I killed the cached processes once, and since have shut down to charge and started new, I haven't seen that behavior.
Do you have WiFi on? Could it be you have apps that are checking to be updated? I know in the past on my phone my Amazon Appstore has a habit of starting itself up and continually checking for updates for itself and for any apps I got from Amazon.
Click to expand...
Click to collapse
Could you tell me how you "killed cached processes" please?
I am having similar battery drain. I am in the process of completely charging battery after it drained 40% in sleep mode last night, wifi off in sleep mods, notifications off, sync off.
I have already done a reset to factory, tried draining battery, and recharged in off position.
Nothing is helping so far. I have installed better battery stats, and CPU spy this morning, and will have data tomorrow morning.
thanks for any help

roqufort said:
Could you tell me how you "killed cached processes" please?
I am having similar battery drain. I am in the process of completely charging battery after it drained 40% in sleep mode last night, wifi off in sleep mods, notifications off, sync off.
I have already done a reset to factory, tried draining battery, and recharged in off position.
Nothing is helping so far. I have installed better battery stats, and CPU spy this morning, and will have data tomorrow morning.
thanks for any help
Click to expand...
Click to collapse
I had the same exact problem ever since the stock ICS update. My Tab Plus is all stock, no mods at all. The battery would completely drain after one day, and I have very little on the Tab Plus. Nothing helped at all, so I finally bit and did a factory wipe. The battery drain stopped immediately, so I started changing the settings back to the way I like it.
Then, next day the battery went completely dead again! I back tracked and figured out exactly what it is which makes absolutely NO SENSE - turning off wifi in sleep was what was draining the battery! See my screen captures. Notice on the first screen shot, as soon as the wifi stays on the battery drop bar stayed almost flat.
I observed a similar behavior on my 100% stock AT&T GS3 phone also, turning wifi off during sleep causes more battery drain.

I'm getting "suspend backoff" under kernel wakelocks which is preventing my tab going to deep sleep when unused. Everytime I wakeup in the morning my tab is dead. The only solution I found was to turn off wifi if I'm not using it. Anyway fixing this?
Sent from my ALCATEL ONE TOUCH 918N using xda app-developers app

aperture said:
I'm getting "suspend backoff" under kernel wakelocks which is preventing my tab going to deep sleep when unused. Everytime I wakeup in the morning my tab is dead. The only solution I found was to turn off wifi if I'm not using it. Anyway fixing this?
Sent from my ALCATEL ONE TOUCH 918N using xda app-developers app
Click to expand...
Click to collapse
Juice Defender. The free version of the app, using the default profile, should take care of this.

iosandroid said:
I had the same exact problem ever since the stock ICS update. My Tab Plus is all stock, no mods at all. The battery would completely drain after one day, and I have very little on the Tab Plus. Nothing helped at all, so I finally bit and did a factory wipe. The battery drain stopped immediately, so I started changing the settings back to the way I like it.
Then, next day the battery went completely dead again! I back tracked and figured out exactly what it is which makes absolutely NO SENSE - turning off wifi in sleep was what was draining the battery! See my screen captures. Notice on the first screen shot, as soon as the wifi stays on the battery drop bar stayed almost flat.
I observed a similar behavior on my 100% stock AT&T GS3 phone also, turning wifi off during sleep causes more battery drain.
Click to expand...
Click to collapse
THAT worked!!!!! awesome thanks

[Q] 3 hrs of screen time...defective battery?

Hello all!
I recently received my OnePlus One and have had it for about 5 days now. I love the phone, but I seem to be having a problem with my battery. I've only been able to squeeze about 3 hours from this phone. Coming from a Note 2 (which also has a 3100 mah battery) I was expecting to get about 6-7 hours of screen on time. Could I have a defective battery? My screen is only at about 25%-30% brightness most of the time.
I attached a screenshot of my battery life. Thanks!

GoTexan20 said:
Hello all!
I recently received my OnePlus One and have had it for about 5 days now. I love the phone, but I seem to be having a problem with my battery. I've only been able to squeeze about 3 hours from this phone. Coming from a Note 2 (which also has a 3100 mah battery) I was expecting to get about 6-7 hours of screen on time. Could I have a defective battery? My screen is only at about 25%-30% brightness most of the time.
I attached a screenshot of my battery life. Thanks!
Click to expand...
Click to collapse
Can you post the complete battery graph, maybe wakelocks draining the battery... If not then seems like I also have the same problem. Not doing anything but it drained 11% of my battery.
http://forum.xda-developers.com/oneplus-one/help/anonymous-battery-drain-deep-sleep-t2841436

soralz said:
Can you post the complete battery graph, maybe wakelocks draining the battery... If not then seems like I also have the same problem. Not doing anything but it drained 11% of my battery.
http://forum.xda-developers.com/oneplus-one/help/anonymous-battery-drain-deep-sleep-t2841436
Click to expand...
Click to collapse
I've charged my phone since this so I don't have the graph anymore. However, I notice that by battery drains 1-2% per hour on standby.

Your screenshot shows absolutely nothing. Your battery is not defective. You obviously have wakelocks that are preventing your phone from deep sleeping.
You need to show:
- Wakelocks (Partial Wakelocks, CPU, etc)
- Overall battery stats
I wouldn't be surprised if its Google Play Services.

zephiK said:
Your screenshot shows absolutely nothing. Your battery is not defective. You obviously have wakelocks that are preventing your phone from deep sleeping.
You need to show:
- Wakelocks (Partial Wakelocks, CPU, etc)
- Overall battery stats
I wouldn't be surprised if its Google Play Services.
Click to expand...
Click to collapse
I've attached more screenshots. Sorry, I'm new. What is a wake lock?

GoTexan20 said:
I've attached more screenshots. Sorry, I'm new. What is a wake lock?
Click to expand...
Click to collapse
Well those screenshots don't really help now since you charged your phone. When you charge your phone your previous battery stats are dumped and new stats start to appear since you've unplugged.
http://www.xda-developers.com/android/android-basics-101-understanding-wakelocks-xda-developer-tv/
In simplest terms, its a app on your phone that is preventing your phone from entering a deep sleep mode. So even though your screen is off, a app on your phone is keeping your phone awake as if the screen is on not allowing the phone to enter a deep sleep mode (very conservative on battery).

Can you download GSAM Battery Monitor and look at the info that gives you? And which ROM are you on?

Check if your "Ok Google" turned on, i had mine turned on and it was draining my battery as it was not letting my phone to sleep.
Google Search -> Menu -> Google Hotword detection
And yes Double Tap to Wake might also be another one .

TheShoxter said:
Can you download GSAM Battery Monitor and look at the info that gives you? And which ROM are you on?
Click to expand...
Click to collapse
I have used BBS and GSAM before, but I think GSAM is better. However, in the latest update some of the menu options have changed names.
Could you explain what each one is for? I can see Kernel Wakelocks, which one is 'Partial Wakelocks' now? Should I be looking at any of the other tabs?

7ewis said:
I have used BBS and GSAM before, but I think GSAM is better. However, in the latest update some of the menu options have changed names.
Could you explain what each one is for? I can see Kernel Wakelocks, which one is 'Partial Wakelocks' now? Should I be looking at any of the other tabs?
Click to expand...
Click to collapse
In Gsam, click the vacuum icon on the bottom left of the screen. This will tell you which apps are using the most battery. You can then click on an app from there and see what exactly it's doing. When your battery gets low, see what comes up as draining a lot of your battery and post back.
As to partial wakelocks, idk. Let's just see what is draining your battery.

I prefer Wakelock Detector. Gsam is not too bad though. I just prefer the simplicity of wakelock detector
https://play.google.com/store/apps/details?id=com.uzumapps.wakelockdetector

OK so I have let my phone run without charging all day and here are the stats. I could only get 3 hrs. of screen time...pretty crappy. Anyway, my brightness has been at about 60% and GPS in battery saving mode. Please help, as I love this phone, but would hate to get rid of it because of battery issues.

GoTexan20 said:
OK so I have let my phone run without charging all day and here are the stats. I could only get 3 hrs. of screen time...pretty crappy. Anyway, my brightness has been at about 60% and GPS in battery saving mode. Please help, as I love this phone, but would hate to get rid of it because of battery issues.
Click to expand...
Click to collapse
I get almost close to 6 hours of screen ontime , but yes most of the stuff like GPS / NFS is turned off when im not using it ..
Like i mentioned did you try to turn off the " OK google " stuff , i had experience of it waking up device quite often and draining my battery, try turning them off ...
Other place to look out for what is walking up your device most of the time and deny them the access to wake up your phone , to hunt those apps , check
settings -> privacy -> privacy guard -> menu -> advanced -> device tab .
I found my facebook app / google play services was constantly waking up my device when on sleep , i denied "keep awake" to boost some more battery life ...

GoTexan20 said:
OK so I have let my phone run without charging all day and here are the stats. I could only get 3 hrs. of screen time...pretty crappy. Anyway, my brightness has been at about 60% and GPS in battery saving mode. Please help, as I love this phone, but would hate to get rid of it because of battery issues.
Click to expand...
Click to collapse
Check on what's keeping your GPS on all the time. My GPS is left on, but when I'm looking at my battery stats for the past 24 hours and it's maybe 3 or 4 slivers where the GPS actually turned on for a moment when I used an app to find my location.

[BIG] Battery drain

hi everybody, since one or two weeks i see i have a big battery drain when my phone is "inactive"... how to resolve this please?

Your screenshot doesn't tell us anything. Further debugging can be found using BetterBatteryStats / Gsam / Wakelock Detector, root is required.
A app is preventing your phone from deep sleeping.
The only thing your screenshot does show us is that Play Services is there, http://forum.xda-developers.com/oneplus-one/general/guide-google-play-services-battery-t2832525
View that to fix that but theres definitely more to it than Play Services.

zephiK said:
Your screenshot doesn't tell us anything. Further debugging can be found using BetterBatteryStats / Gsam / Wakelock Detector, root is required.
A app is preventing your phone from deep sleeping.
The only thing your screenshot does show us is that Play Services is there, http://forum.xda-developers.com/oneplus-one/general/guide-google-play-services-battery-t2832525
View that to fix that but theres definitely more to it than Play Services.
Click to expand...
Click to collapse
thanks for your rapid answer Zephik, but i have just reflashed
my stock calkulin's cm11... but i have a question: is it possible the battery drain come since i changed kernels..? (without touching their settings)

brunsman6229 said:
thanks for your rapid answer Zephik, but i have just reflashed
my stock calkulin's cm11... but i have a question: is it possible the battery drain come since i changed kernels..? (without touching their settings)
Click to expand...
Click to collapse
I don't understand your question. In actuality, it takes a couple days for your phone to settle in the new kernel if thats what you're asking.
As long as your phone is properly deep sleeping, you shouldn't be worrying.
You can find out by using 1 of the 3 apps I mentioned previously.

zephiK said:
I don't understand your question. In actuality, it takes a couple days for your phone to settle in the new kernel if thats what you're asking.
As long as your phone is properly deep sleeping, you shouldn't be worrying.
You can find out by using 1 of the 3 apps I mentioned previously.
Click to expand...
Click to collapse
i say, is it possible that the battery drain comes from new kernel?(AK)
also thanks for your help dude, and i modified googleplay services as you've told me with my fresh install of cm11...

I have 2 days of battery life almost and still have 20% left. I use this phone heavily and haven't recharged.
I had the same problem where 60% drain overnight.
Now 2 says.
All I did was turn off Facebook Location services.
That's it.
Facebook was draining so much. I have Wifi on, GPS with High Accuracy.

Facebook always drains a significant amount of battery, I prefer using the mobile website but if you must need the app then greenify it.

OnePlus One Poor battery life due to wakelocks

I've had this phone for about a month and all. It was alright most of the time until I recently did a factory reset. Strangly it all went downhill from there. The phone started suffering hardcore wakelock issues. Overnight I'm losing about 50% battery if I decided not to charge it overnight.
I did another factory reset thinking it might fix the issues I had but it didn't so I went with hard reset. None of the actions taken have worked.
I downloaded Wakelock Detector ( really no use since it requires root for everything ) and BetterBatteryStats. BBS told me that event0-796 and event2-796 is whats keeping my phone awake ( screenshot in attachments ), not going to deep sleep ( I have attached some more screenshots from Settings/Battery and BetterBatteryStats if that helps... )
What should I do ?
Thanks in advance, Erik

TheSlov3nc said:
I've had this phone for about a month and all. It was alright most of the time until I recently did a factory reset. Strangly it all went downhill from there. The phone started suffering hardcore wakelock issues. Overnight I'm losing about 50% battery if I decided not to charge it overnight.
I did another factory reset thinking it might fix the issues I had but it didn't so I went with hard reset. None of the actions taken have worked.
I downloaded Wakelock Detector ( really no use since it requires root for everything ) and BetterBatteryStats. BBS told me that event0-796 and event2-796 is whats keeping my phone awake ( screenshot in attachments ), not going to deep sleep ( I have attached some more screenshots from Settings/Battery and BetterBatteryStats if that helps... )
What should I do ?
Thanks in advance, Erik
Click to expand...
Click to collapse
Same here, I have the same issue. Seems related to WIFI

You can find more information here, although there doesn't seem to be any real solution: http://forum.xda-developers.com/oneplus-one/help/event0-wakelocks-t2957829
I'm just going to deal with it. The phone still gets me at least 5hrs SOT throughout the day, and I always charge it at night. The wakelocks itself don't really bother me personally, it's just the knowing they're there.

The event wakelocks are irrelevant. I'm certain its an app thats keeping your phone awake so pay attention to the partial wakelock and alarms section in BBS. Also install wakelock detector and see whats keeping it awake.
sent from my amazingly awesome OnePlus One with Stereo Mod
Don't forget to hit thanks!

Deviceidle_Maint Wakelock on SGS 7 Battery Drainer - What is it?

Dear all,
I bought a SGS 7 about a week ago.
It's unrooted, but I enabled Gsam via ADB and use Greenify. The Built in Battery Monitor I turned off.
Unfortunately something seems to drain battery in standby mode. I lost 10% battery in 2 hours without using the phone.
The wakelock on top of the list is called "deviceidle_maint" - I searched the internet and also through forums. There are mentions of this wakelock but nowhere I could find explicitly what it does, what it is caused by and how to turn it off.
I would ask your help on this matter.
My Gsam stats: https://ibb.co/nCpcnR
Thanks for the great support guys!!!
Best,
Marc

so by now I know it got something to do with GPS. but even if I turn off GPS, this wakelock still is no.1 in minutes. Which other system tools or apps use this functionality?

up, i have the same wakelock

Up....Up...Up

same wakelock "deviceidle_maint" on s22 Ultra

I have 32 wakelocks with 6 minutes for this "deviceidle_maint". Has anyone found anything about it?
[Device: Galaxy s10+ Exynoss, heavily debloated].